20123394005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{2069}}^1$

素因数の和:2382

約数の個数: 64

約数和(自身を含む): 28978145280

約数和(自身を除く): 8854751275

約数列:

[1, 5, 11, 13, 55, 61, 65, 143, 223, 305, 671, 715, 793, 1115, 2069, 2453, 2899, 3355, 3965, 8723, 10345, 12265, 13603, 14495, 22759, 26897, 31889, 43615, 68015, 113795, 126209, 134485, 149633, 159445, 176839, 295867, 461387, 631045, 748165, 884195, 1388299, 1479335, 1640717, 1945229, 2306935, 5075257, 5998031, 6941495, 8203585, 9726145, 18047887, 25376285, 28144607, 29990155, 65978341, 90239435, 140723035, 309590677, 329891705, 365879891, 1547953385, 1829399455, 4024678801, 20123394005]

約数ペア:

[(1, 20123394005), (5, 4024678801), (11, 1829399455), (13, 1547953385), (55, 365879891), (61, 329891705), (65, 309590677), (143, 140723035), (223, 90239435), (305, 65978341), (671, 29990155), (715, 28144607), (793, 25376285), (1115, 18047887), (2069, 9726145), (2453, 8203585), (2899, 6941495), (3355, 5998031), (3965, 5075257), (8723, 2306935), (10345, 1945229), (12265, 1640717), (13603, 1479335), (14495, 1388299), (22759, 884195), (26897, 748165), (31889, 631045), (43615, 461387), (68015, 295867), (113795, 176839), (126209, 159445), (134485, 149633)]